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Title
A muscle cramp is a sudden and involuntary contraction of one or more of your muscles. #215188509
Description
A muscle cramp is a sudden and involuntary contraction of one or more of your muscles. If you`ve ever been awakened in the night or stopped in your tracks by a sudden charley horse, you know that muscle cramps can cause severe pain. Though generally harmless, muscle cramps can make it temporarily impossible to use the affected muscle.